Updates wiki help: Link to an anchor of the current wikipage (#16313).

Patch by Go MAEDA.


git-svn-id: http://svn.redmine.org/redmine/trunk@17367 e93f8b46-1217-0410-a6f0-8f06a7374b81

public/help/zh/wiki_syntax_detailed_markdown.html

@@ -24,6 +24,7 @@
         <ul>
             <li><strong>[[Guide]]</strong> displays a link to the page named 'Guide': <a href="#" class="wiki-page">Guide</a></li>
             <li><strong>[[Guide#further-reading]]</strong> takes you to the anchor "further-reading". Headings get automatically assigned anchors so that you can refer to them: <a href="#" class="wiki-page">Guide</a></li>
+            <li><strong>[[#further-reading]]</strong> link to the anchor "further-reading" of the current page: <a href="#" class="wiki-page">#further-reading</a></li>
             <li><strong>[[Guide|User manual]]</strong> displays a link to the same page but with a different text: <a href="#" class="wiki-page">User manual</a></li>
         </ul>
 

public/help/zh/wiki_syntax_detailed_textile.html

@@ -24,6 +24,7 @@
         <ul>
             <li><strong>[[Guide]]</strong> 显示一个页面名为'Guide'的链接： <a href="#" class="wiki-page">Guide</a></li>
             <li><strong>[[Guide#further-reading]]</strong> 链接到页面内的"further-reading"标签. 每个标题都会自动绑定一个标签，方便您进行链接: <a href="#" class="wiki-page">Guide</a></li>
+            <li><strong>[[#further-reading]]</strong> link to the anchor "further-reading" of the current page: <a href="#" class="wiki-page">#further-reading</a></li>
             <li><strong>[[Guide|User manual]]</strong> 使用不同的文字来显示一个页面名称为'Guide'的链接： <a href="#" class="wiki-page">User manual</a></li>
         </ul>
 
@@ -126,7 +127,7 @@
                     <li><strong>news:"First Release"</strong> (新闻名称包含空格时，使用双引号来表示)</li>
                 </ul></li>
         </ul>
- 
+
         <ul>
             <li>Users:
                 <ul>